Throw your hands in the air if you a true player (that loves contrast sleeves). The gray and black work well together and the slightly contrasting back panel is just translucent and weird enough to let people know you spent way too much money on a shirt. Yes, it's made out of mostly polyester and normally that is a no-go, but this is by a Japanese brand, namely CdG Homme Plus. When a Japanese or Scandinavian label uses crappy materials like polyester, it's innovative and cool, not cheap and kind of uncomfortable. That's the first bullet point on your Intro to Fashion syllabus.